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Kämmer Series 341000 FCD KMENIM4104-01 03/18
4 ACTUATOR
4.1
KP Diaphragm Actuator
4.1.1 First Installation after unpacking (figure 12)
ColdFlow Series 341000 will be delivered in two parts:
valve subassembly and actuator. Especially for small
sizes the mounted actuator might cause damage to
the valve. Also for welding the valve into the vacuum
cold box actuator and trim must be removed from the
valve body.
Remove the locknut (12.1) from the valve bonnet.
Place the actuator with the installed yoke plate (12.2 )
onto the valve bonnet. Before connecting the coupling
(12.3) slip the locknut over the valve stem (12.4)
and screw the locknut onto the bonnet thread. For
tightening torques please refer to chapter 7.3
CAUTION:
Be careful while placing the yoke plate over
the stem. Damage of the stem and/or the entire trim
assembly may occur.
NOTE:
Make sure that the Serial Number of the valve
(engraved at the bonnet) and of the actuator (Tag plate)
correspond to each other.
4.1.2 Removing for repair or maintenance (figure 13)
We recommend separating the actuator from the valve
during all repair work. However, many maintenance
and adjusting operations can be carried out in an
installed condition.
4.1.2.1 Shut off air supply
4.1.2.2 Disconnect all air tubing from the actuator
4.1.2.3 Remove and install actuator (figure 14)
Typically for a quick removal of the actuator the 2 yoke
nut screws (14.1) are removed. After this remove the
coupling screws (14.2) from the coupling and take off
both coupling parts.
NOTE:
If there are accessories such as positioners and/
or limit switches connected to the coupling, please
carefully disconnect the lever or if necessary the entire
accessory.
NOTE:
Ensure that the plug assembly is not rotated
with the plug seated. This may cause irreparable
damage to the seating faces.
Figure 12: Actuator Mounting
12.1
12.2
12.3
12.4
Figure 13: Actuator Assembly
Figure 14: Remove and install actuator
14.1
14.1
14.2
